Performance Analysis of Opportunistic and All-Participate Relaying with Imperfect Channel Estimation
Lei Wang, Yueming Cai, Weiwei Yang · IEICE Transactions on Communications · 2011
For amplify-and-forward (AF) relaying with imperfect channel estimation, we present the average symbol error rate (SER) and the diversity and multiplexing tradeoff (DMT) analysis for both opportunistic relaying (OPR) and all-participate relaying (APR) schemes. SER comparisons show that when the channel estimation quality order is no larger than 1, OPR will perform worse than APR in high SNR region. Moreover, small channel estimation quality orders will also lead to significant DMT loss.